57163204 has 18 divisors (see below), whose sum is σ = 116368350. Its totient is φ = 24498432.

The previous prime is 57163201. The next prime is 57163207. The reversal of 57163204 is 40236175.

57163204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57163201) and next prime (57163207).

It can be written as a sum of positive squares in only one way, i.e., 57153600 + 9604 = 7560^2 + 98^2 .

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (57163201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 145629 + ... + 146020.

Almost surely, 2^57163204 is an apocalyptic number.

It is an amenable number.

57163204 is an abundant number, since it is smaller than the sum of its proper divisors (59205146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57163204 is a wasteful number, since it uses less digits than its factorization.

57163204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291667 (or 291658 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 57163204 is about 7560.6351585035. The cubic root of 57163204 is about 385.2170676743.

Adding to 57163204 its reverse (40236175), we get a palindrome (97399379).

The spelling of 57163204 in words is "fifty-seven million, one hundred sixty-three thousand, two hundred four".